Grok 4.3
GrokFlagship
ThinkingTool UseVisionStructured Output
About this model
Grok 4.3 is a reasoning model from xAI. It accepts text and image inputs with text output, and is suited for agentic workflows, instruction-following tasks, and applications requiring high factual...
Performance Tier
Flagship
Grok 4.3 is a flagship model from Grok : the most capable in their lineup.
Best-in-class model from this provider. Highest performance across benchmarks, ideal for demanding tasks.
Pricing
This model is included in Elosia plansAffordable
Low cost. Suitable for sustained use and high-volume interactions.
| Type | per 1M tokens |
|---|---|
| Input (prompt) | $1.25 |
| Output (completion) | $2.50 |
| Cache read | $0.200 |
Capabilities
Context Length1.0M
Max Output Tokens—
TokenizerGrok
Inputtext, image
Outputtext
Release DateApril 30, 2026
Recommended Use Cases
ResearchAnalysisCodingGeneral Chat
Strengths
- Native video input — first Grok model to ingest video alongside text and image
- 1M token context window for long-document analysis and multi-step agentic workflows
- High-throughput at 199 tokens/second — among the fastest reasoning models
- Aggressive pricing (~40% cheaper than Grok 4.20) at $1.25/$2.50 per M tokens
- AAI Intelligence Index 53 — ahead of Grok 4.20 (49) and competitive with Sonnet 4.6
Limitations
- Context window halved compared to Grok 4.20 (1M vs 2M)
- Reputation for verbose output — high token consumption per query
- No canonical academic benchmark scores published yet
Resources
This model may use your data for training
